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187444 (2005 WQ102)
Classification: Main-belt Asteroid          SPK-ID: 2187444
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1273103159859292 3.8473e-08  
a 2.916023914858292 2.3998e-08 au
q 2.544783988835157 1.1604e-07 au
i 9.702566638288248 4.5069e-06 deg
node 174.7375687205168 3.0008e-05 deg
peri 221.4548944403151 3.7476e-05 deg
M 32.83615532203586 2.1062e-05 deg
tp 2459034.604406883169
(2020-Jul-04.10440688)
0.00010666 TDB
period 1818.800433130505
4.98
2.2452e-05
6.147e-08
d
yr
n .1979326557451775 2.4434e-09 deg/d
Q 3.287263840881428 2.7053e-08 au
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      6501 days (17.80 yr)  
   first obs. used      2003-04-25  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:26  

Additional Information
 Earth MOID = 1.55854 au 
 Jupiter MOID = 2.18829 au 
 T_jup = 3.248 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457726.5 (2016-Dec-04.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1274391618975441 3.8254e-08  
q 2.544447190518016 1.1469e-07 au
tp 2457204.333313431446
(2015-Jun-30.83331343)
0.000111 TDB
node 174.9439203517296 2.9868e-05 deg
peri 219.3851421963145 3.7422e-05 deg
i 9.723900325075208 4.518e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      360  
   data-arc span      6501 days (17.80 yr)  
   first obs. used      2003-04-25  
   last obs. used      2021-02-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57165  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:55:26  

Additional Information
 Jupiter MOID = 2.18829 au 
 T_jup = 3.248 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.463335449819149E-15 -4.315587901031346E-15 6.281540766788051E-13 4.948706018482926E-15 1.128637627037585E-13 -4.09312232532175E-15
q -4.315587901031346E-15 1.315320343525951E-14 -2.467969516323828E-12 -1.939029823939835E-14 -4.284580217109214E-13 1.347692109486491E-14
tp 6.281540766788051E-13 -2.467969516323828E-12 1.232038275463377E-8 3.90598889697313E-11 2.533653454379275E-9 -1.18248190649957E-11
node 4.948706018482926E-15 -1.939029823939835E-14 3.90598889697313E-11 8.921247800356314E-10 -8.707201435691433E-10 -1.666408365040306E-11
peri 1.128637627037585E-13 -4.284580217109214E-13 2.533653454379275E-9 -8.707201435691433E-10 1.400413265323803E-9 1.395814739460734E-11
i -4.09312232532175E-15 1.347692109486491E-14 -1.18248190649957E-11 -1.666408365040306E-11 1.395814739460734E-11 2.041253936039367E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.00   n/a MPCxxxxx  

187444 (2005 WQ102)          Discovered 2005-Nov-25 by CSS at Catalina
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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